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/* This program is free software; you can redistribute it and/or modify
* it under the terms of version 3 or later of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*! \file common.h
\brief Odd definitions
*/
#ifndef _COMMON_H_
#define _COMMON_H_
#include "math.h"
#if !_GNU_SOURCE && !defined (__attribute__)
/*! \brief GNU C specific attributes, e.g. unused
// */
#define __attribute__(X)
#endif
/*! \brief Safe double error value (and float with a cast)
*/
#if defined(HUGE_VAL)
#define ERR_VAL (-HUGE_VAL)
#else
#define ERR_VAL (-FLT_MAX)
#endif
/*! \brief Macro to extract sign
*/
#ifndef SGN
#define SGN(x) ((x) > 0 ? 1 : -1)
#endif
/*! \brief typedef of signal handler function
*/
#if HAVE_SIGACTION
typedef struct sigaction psighandler;
#elif HAVE_SIGVEC
typedef struct sigvec psighandler;
#else
typedef RETSIGTYPE(*psighandler) (int);
#endif
#define sqrtf(arg) (float)sqrt((double)(arg))
#define fabsf(arg) (float)fabs((double)(arg))
/* Do we need to use g_utf8_casefold() for utf8 anywhere? */
#define StrCaseCmp(s1, s2) g_ascii_strcasecmp(s1, s2)
#define StrNCaseCmp(s1, s2, n) g_ascii_strncasecmp(s1, s2, (gsize)n)
/* Avoid new code using strcase functions */
#define strcasecmp strcasecmp_error_use_StrCaseCmp
#define strncasecmp strncasecmp_error_use_StrNCaseCmp
#endif
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